From 297b60346df8beafee954a0fd7c2d64f33f3b9bc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:44:05 +0000
Subject: [PATCH] rtl8211F_led_control
---
kernel/drivers/scsi/sd.c | 1012 ++++++++++++++++++++++++++++++----------------------------
1 files changed, 525 insertions(+), 487 deletions(-)
diff --git a/kernel/drivers/scsi/sd.c b/kernel/drivers/scsi/sd.c
index 4f89275..d18c560 100644
--- a/kernel/drivers/scsi/sd.c
+++ b/kernel/drivers/scsi/sd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* sd.c Copyright (C) 1992 Drew Eckhardt
* Copyright (C) 1993, 1994, 1995, 1999 Eric Youngdale
@@ -45,6 +46,7 @@
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/blkpg.h>
+#include <linux/blk-pm.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/string_helpers.h>
@@ -113,15 +115,13 @@
static int sd_suspend_runtime(struct device *);
static int sd_resume(struct device *);
static void sd_rescan(struct device *);
-static int sd_init_command(struct scsi_cmnd *SCpnt);
+static blk_status_t sd_init_command(struct scsi_cmnd *SCpnt);
static void sd_uninit_command(struct scsi_cmnd *SCpnt);
static int sd_done(struct scsi_cmnd *);
static void sd_eh_reset(struct scsi_cmnd *);
static int sd_eh_action(struct scsi_cmnd *, int);
static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer);
static void scsi_disk_release(struct device *cdev);
-static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *);
-static void sd_print_result(const struct scsi_disk *, const char *, int);
static DEFINE_IDA(sd_index_ida);
@@ -194,7 +194,7 @@
}
if (scsi_mode_sense(sdp, 0x08, 8, buffer, sizeof(buffer), SD_TIMEOUT,
- SD_MAX_RETRIES, &data, NULL))
+ sdkp->max_retries, &data, NULL))
return -EINVAL;
len = min_t(size_t, sizeof(buffer), data.length - data.header_length -
data.block_descriptor_length);
@@ -212,12 +212,12 @@
data.device_specific = 0;
if (scsi_mode_select(sdp, 1, sp, 8, buffer_data, len, SD_TIMEOUT,
- SD_MAX_RETRIES, &data, &sshdr)) {
+ sdkp->max_retries, &data, &sshdr)) {
if (scsi_sense_valid(&sshdr))
sd_print_sense_hdr(sdkp, &sshdr);
return -EINVAL;
}
- revalidate_disk(sdkp->disk);
+ sd_revalidate_disk(sdkp->disk);
return count;
}
@@ -528,6 +528,54 @@
}
static DEVICE_ATTR_RW(max_write_same_blocks);
+static ssize_t
+zoned_cap_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+
+ if (sdkp->device->type == TYPE_ZBC)
+ return sprintf(buf, "host-managed\n");
+ if (sdkp->zoned == 1)
+ return sprintf(buf, "host-aware\n");
+ if (sdkp->zoned == 2)
+ return sprintf(buf, "drive-managed\n");
+ return sprintf(buf, "none\n");
+}
+static DEVICE_ATTR_RO(zoned_cap);
+
+static ssize_t
+max_retries_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+ struct scsi_device *sdev = sdkp->device;
+ int retries, err;
+
+ err = kstrtoint(buf, 10, &retries);
+ if (err)
+ return err;
+
+ if (retries == SCSI_CMD_RETRIES_NO_LIMIT || retries <= SD_MAX_RETRIES) {
+ sdkp->max_retries = retries;
+ return count;
+ }
+
+ sdev_printk(KERN_ERR, sdev, "max_retries must be between -1 and %d\n",
+ SD_MAX_RETRIES);
+ return -EINVAL;
+}
+
+static ssize_t
+max_retries_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+
+ return sprintf(buf, "%d\n", sdkp->max_retries);
+}
+
+static DEVICE_ATTR_RW(max_retries);
+
static struct attribute *sd_disk_attrs[] = {
&dev_attr_cache_type.attr,
&dev_attr_FUA.attr,
@@ -541,6 +589,8 @@
&dev_attr_zeroing_mode.attr,
&dev_attr_max_write_same_blocks.attr,
&dev_attr_max_medium_access_timeouts.attr,
+ &dev_attr_zoned_cap.attr,
+ &dev_attr_max_retries.attr,
NULL,
};
ATTRIBUTE_GROUPS(sd_disk);
@@ -566,6 +616,7 @@
.name = "sd",
.owner = THIS_MODULE,
.probe = sd_probe,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
.remove = sd_remove,
.shutdown = sd_shutdown,
.pm = &sd_pm_ops,
@@ -648,7 +699,8 @@
static int sd_sec_submit(void *data, u16 spsp, u8 secp, void *buffer,
size_t len, bool send)
{
- struct scsi_device *sdev = data;
+ struct scsi_disk *sdkp = data;
+ struct scsi_device *sdev = sdkp->device;
u8 cdb[12] = { 0, };
int ret;
@@ -657,12 +709,74 @@
put_unaligned_be16(spsp, &cdb[2]);
put_unaligned_be32(len, &cdb[6]);
- ret = scsi_execute_req(sdev, cdb,
- send ? DMA_TO_DEVICE : DMA_FROM_DEVICE,
- buffer, len, NULL, SD_TIMEOUT, SD_MAX_RETRIES, NULL);
+ ret = scsi_execute(sdev, cdb, send ? DMA_TO_DEVICE : DMA_FROM_DEVICE,
+ buffer, len, NULL, NULL, SD_TIMEOUT, sdkp->max_retries, 0,
+ RQF_PM, NULL);
return ret <= 0 ? ret : -EIO;
}
#endif /* CONFIG_BLK_SED_OPAL */
+
+/*
+ * Look up the DIX operation based on whether the command is read or
+ * write and whether dix and dif are enabled.
+ */
+static unsigned int sd_prot_op(bool write, bool dix, bool dif)
+{
+ /* Lookup table: bit 2 (write), bit 1 (dix), bit 0 (dif) */
+ static const unsigned int ops[] = { /* wrt dix dif */
+ SCSI_PROT_NORMAL, /* 0 0 0 */
+ SCSI_PROT_READ_STRIP, /* 0 0 1 */
+ SCSI_PROT_READ_INSERT, /* 0 1 0 */
+ SCSI_PROT_READ_PASS, /* 0 1 1 */
+ SCSI_PROT_NORMAL, /* 1 0 0 */
+ SCSI_PROT_WRITE_INSERT, /* 1 0 1 */
+ SCSI_PROT_WRITE_STRIP, /* 1 1 0 */
+ SCSI_PROT_WRITE_PASS, /* 1 1 1 */
+ };
+
+ return ops[write << 2 | dix << 1 | dif];
+}
+
+/*
+ * Returns a mask of the protection flags that are valid for a given DIX
+ * operation.
+ */
+static unsigned int sd_prot_flag_mask(unsigned int prot_op)
+{
+ static const unsigned int flag_mask[] = {
+ [SCSI_PROT_NORMAL] = 0,
+
+ [SCSI_PROT_READ_STRIP] = SCSI_PROT_TRANSFER_PI |
+ SCSI_PROT_GUARD_CHECK |
+ SCSI_PROT_REF_CHECK |
+ SCSI_PROT_REF_INCREMENT,
+
+ [SCSI_PROT_READ_INSERT] = SCSI_PROT_REF_INCREMENT |
+ SCSI_PROT_IP_CHECKSUM,
+
+ [SCSI_PROT_READ_PASS] = SCSI_PROT_TRANSFER_PI |
+ SCSI_PROT_GUARD_CHECK |
+ SCSI_PROT_REF_CHECK |
+ SCSI_PROT_REF_INCREMENT |
+ SCSI_PROT_IP_CHECKSUM,
+
+ [SCSI_PROT_WRITE_INSERT] = SCSI_PROT_TRANSFER_PI |
+ SCSI_PROT_REF_INCREMENT,
+
+ [SCSI_PROT_WRITE_STRIP] = SCSI_PROT_GUARD_CHECK |
+ SCSI_PROT_REF_CHECK |
+ SCSI_PROT_REF_INCREMENT |
+ SCSI_PROT_IP_CHECKSUM,
+
+ [SCSI_PROT_WRITE_PASS] = SCSI_PROT_TRANSFER_PI |
+ SCSI_PROT_GUARD_CHECK |
+ SCSI_PROT_REF_CHECK |
+ SCSI_PROT_REF_INCREMENT |
+ SCSI_PROT_IP_CHECKSUM,
+ };
+
+ return flag_mask[prot_op];
+}
static unsigned char sd_setup_protect_cmnd(struct scsi_cmnd *scmd,
unsigned int dix, unsigned int dif)
@@ -756,18 +870,19 @@
blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
}
-static int sd_setup_unmap_cmnd(struct scsi_cmnd *cmd)
+static blk_status_t sd_setup_unmap_cmnd(struct scsi_cmnd *cmd)
{
struct scsi_device *sdp = cmd->device;
struct request *rq = cmd->request;
- u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9);
- u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9);
+ struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
+ u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
unsigned int data_len = 24;
char *buf;
rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC);
if (!rq->special_vec.bv_page)
- return BLKPREP_DEFER;
+ return BLK_STS_RESOURCE;
clear_highpage(rq->special_vec.bv_page);
rq->special_vec.bv_offset = 0;
rq->special_vec.bv_len = data_len;
@@ -780,28 +895,29 @@
buf = page_address(rq->special_vec.bv_page);
put_unaligned_be16(6 + 16, &buf[0]);
put_unaligned_be16(16, &buf[2]);
- put_unaligned_be64(sector, &buf[8]);
- put_unaligned_be32(nr_sectors, &buf[16]);
+ put_unaligned_be64(lba, &buf[8]);
+ put_unaligned_be32(nr_blocks, &buf[16]);
- cmd->allowed = SD_MAX_RETRIES;
+ cmd->allowed = sdkp->max_retries;
cmd->transfersize = data_len;
rq->timeout = SD_TIMEOUT;
- scsi_req(rq)->resid_len = data_len;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
-static int sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd, bool unmap)
+static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd,
+ bool unmap)
{
struct scsi_device *sdp = cmd->device;
struct request *rq = cmd->request;
- u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9);
- u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9);
+ struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
+ u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
u32 data_len = sdp->sector_size;
rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC);
if (!rq->special_vec.bv_page)
- return BLKPREP_DEFER;
+ return BLK_STS_RESOURCE;
clear_highpage(rq->special_vec.bv_page);
rq->special_vec.bv_offset = 0;
rq->special_vec.bv_len = data_len;
@@ -811,28 +927,29 @@
cmd->cmnd[0] = WRITE_SAME_16;
if (unmap)
cmd->cmnd[1] = 0x8; /* UNMAP */
- put_unaligned_be64(sector, &cmd->cmnd[2]);
- put_unaligned_be32(nr_sectors, &cmd->cmnd[10]);
+ put_unaligned_be64(lba, &cmd->cmnd[2]);
+ put_unaligned_be32(nr_blocks, &cmd->cmnd[10]);
- cmd->allowed = SD_MAX_RETRIES;
+ cmd->allowed = sdkp->max_retries;
cmd->transfersize = data_len;
rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
- scsi_req(rq)->resid_len = data_len;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
-static int sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd, bool unmap)
+static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
+ bool unmap)
{
struct scsi_device *sdp = cmd->device;
struct request *rq = cmd->request;
- u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9);
- u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9);
+ struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
+ u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
u32 data_len = sdp->sector_size;
rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC);
if (!rq->special_vec.bv_page)
- return BLKPREP_DEFER;
+ return BLK_STS_RESOURCE;
clear_highpage(rq->special_vec.bv_page);
rq->special_vec.bv_offset = 0;
rq->special_vec.bv_len = data_len;
@@ -842,24 +959,23 @@
cmd->cmnd[0] = WRITE_SAME;
if (unmap)
cmd->cmnd[1] = 0x8; /* UNMAP */
- put_unaligned_be32(sector, &cmd->cmnd[2]);
- put_unaligned_be16(nr_sectors, &cmd->cmnd[7]);
+ put_unaligned_be32(lba, &cmd->cmnd[2]);
+ put_unaligned_be16(nr_blocks, &cmd->cmnd[7]);
- cmd->allowed = SD_MAX_RETRIES;
+ cmd->allowed = sdkp->max_retries;
cmd->transfersize = data_len;
rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
- scsi_req(rq)->resid_len = data_len;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
-static int sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd)
+static blk_status_t sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd)
{
struct request *rq = cmd->request;
struct scsi_device *sdp = cmd->device;
struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
- u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9);
- u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9);
+ u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
if (!(rq->cmd_flags & REQ_NOUNMAP)) {
switch (sdkp->zeroing_mode) {
@@ -870,10 +986,12 @@
}
}
- if (sdp->no_write_same)
- return BLKPREP_INVALID;
+ if (sdp->no_write_same) {
+ rq->rq_flags |= RQF_QUIET;
+ return BLK_STS_TARGET;
+ }
- if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff)
+ if (sdkp->ws16 || lba > 0xffffffff || nr_blocks > 0xffff)
return sd_setup_write_same16_cmnd(cmd, false);
return sd_setup_write_same10_cmnd(cmd, false);
@@ -948,44 +1066,38 @@
* Will set up either WRITE SAME(10) or WRITE SAME(16) depending on
* the preference indicated by the target device.
**/
-static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
+static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
{
struct request *rq = cmd->request;
struct scsi_device *sdp = cmd->device;
struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
struct bio *bio = rq->bio;
- sector_t sector = blk_rq_pos(rq);
- unsigned int nr_sectors = blk_rq_sectors(rq);
+ u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
unsigned int nr_bytes = blk_rq_bytes(rq);
- int ret;
+ blk_status_t ret;
if (sdkp->device->no_write_same)
- return BLKPREP_INVALID;
+ return BLK_STS_TARGET;
BUG_ON(bio_offset(bio) || bio_iovec(bio).bv_len != sdp->sector_size);
- sector >>= ilog2(sdp->sector_size) - 9;
- nr_sectors >>= ilog2(sdp->sector_size) - 9;
+ rq->timeout = SD_WRITE_SAME_TIMEOUT;
- if (likely(!sdp->timeout_override))
- rq->timeout = SD_WRITE_SAME_TIMEOUT;
- else
- rq->timeout = sdp->timeout_override;
-
- if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff) {
+ if (sdkp->ws16 || lba > 0xffffffff || nr_blocks > 0xffff) {
cmd->cmd_len = 16;
cmd->cmnd[0] = WRITE_SAME_16;
- put_unaligned_be64(sector, &cmd->cmnd[2]);
- put_unaligned_be32(nr_sectors, &cmd->cmnd[10]);
+ put_unaligned_be64(lba, &cmd->cmnd[2]);
+ put_unaligned_be32(nr_blocks, &cmd->cmnd[10]);
} else {
cmd->cmd_len = 10;
cmd->cmnd[0] = WRITE_SAME;
- put_unaligned_be32(sector, &cmd->cmnd[2]);
- put_unaligned_be16(nr_sectors, &cmd->cmnd[7]);
+ put_unaligned_be32(lba, &cmd->cmnd[2]);
+ put_unaligned_be16(nr_blocks, &cmd->cmnd[7]);
}
cmd->transfersize = sdp->sector_size;
- cmd->allowed = SD_MAX_RETRIES;
+ cmd->allowed = sdkp->max_retries;
/*
* For WRITE SAME the data transferred via the DATA OUT buffer is
@@ -998,15 +1110,16 @@
* knows how much to actually write.
*/
rq->__data_len = sdp->sector_size;
- ret = scsi_init_io(cmd);
+ ret = scsi_alloc_sgtables(cmd);
rq->__data_len = nr_bytes;
return ret;
}
-static int sd_setup_flush_cmnd(struct scsi_cmnd *cmd)
+static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd)
{
struct request *rq = cmd->request;
+ struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
/* flush requests don't perform I/O, zero the S/G table */
memset(&cmd->sdb, 0, sizeof(cmd->sdb));
@@ -1014,250 +1127,208 @@
cmd->cmnd[0] = SYNCHRONIZE_CACHE;
cmd->cmd_len = 10;
cmd->transfersize = 0;
- cmd->allowed = SD_MAX_RETRIES;
+ cmd->allowed = sdkp->max_retries;
rq->timeout = rq->q->rq_timeout * SD_FLUSH_TIMEOUT_MULTIPLIER;
- return BLKPREP_OK;
+ return BLK_STS_OK;
}
-static int sd_setup_read_write_cmnd(struct scsi_cmnd *SCpnt)
+static blk_status_t sd_setup_rw32_cmnd(struct scsi_cmnd *cmd, bool write,
+ sector_t lba, unsigned int nr_blocks,
+ unsigned char flags)
{
- struct request *rq = SCpnt->request;
- struct scsi_device *sdp = SCpnt->device;
- struct gendisk *disk = rq->rq_disk;
- struct scsi_disk *sdkp = scsi_disk(disk);
- sector_t block = blk_rq_pos(rq);
- sector_t threshold;
- unsigned int this_count = blk_rq_sectors(rq);
- unsigned int dif, dix;
- int ret;
- unsigned char protect;
+ cmd->cmnd = mempool_alloc(sd_cdb_pool, GFP_ATOMIC);
+ if (unlikely(cmd->cmnd == NULL))
+ return BLK_STS_RESOURCE;
- ret = scsi_init_io(SCpnt);
- if (ret != BLKPREP_OK)
- return ret;
- WARN_ON_ONCE(SCpnt != rq->special);
+ cmd->cmd_len = SD_EXT_CDB_SIZE;
+ memset(cmd->cmnd, 0, cmd->cmd_len);
- /* from here on until we're complete, any goto out
- * is used for a killable error condition */
- ret = BLKPREP_KILL;
+ cmd->cmnd[0] = VARIABLE_LENGTH_CMD;
+ cmd->cmnd[7] = 0x18; /* Additional CDB len */
+ cmd->cmnd[9] = write ? WRITE_32 : READ_32;
+ cmd->cmnd[10] = flags;
+ put_unaligned_be64(lba, &cmd->cmnd[12]);
+ put_unaligned_be32(lba, &cmd->cmnd[20]); /* Expected Indirect LBA */
+ put_unaligned_be32(nr_blocks, &cmd->cmnd[28]);
- SCSI_LOG_HLQUEUE(1,
- scmd_printk(KERN_INFO, SCpnt,
- "%s: block=%llu, count=%d\n",
- __func__, (unsigned long long)block, this_count));
+ return BLK_STS_OK;
+}
- if (!sdp || !scsi_device_online(sdp) ||
- block + blk_rq_sectors(rq) > get_capacity(disk)) {
- SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt,
- "Finishing %u sectors\n",
- blk_rq_sectors(rq)));
- SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt,
- "Retry with 0x%p\n", SCpnt));
- goto out;
- }
+static blk_status_t sd_setup_rw16_cmnd(struct scsi_cmnd *cmd, bool write,
+ sector_t lba, unsigned int nr_blocks,
+ unsigned char flags)
+{
+ cmd->cmd_len = 16;
+ cmd->cmnd[0] = write ? WRITE_16 : READ_16;
+ cmd->cmnd[1] = flags;
+ cmd->cmnd[14] = 0;
+ cmd->cmnd[15] = 0;
+ put_unaligned_be64(lba, &cmd->cmnd[2]);
+ put_unaligned_be32(nr_blocks, &cmd->cmnd[10]);
- if (sdp->changed) {
+ return BLK_STS_OK;
+}
+
+static blk_status_t sd_setup_rw10_cmnd(struct scsi_cmnd *cmd, bool write,
+ sector_t lba, unsigned int nr_blocks,
+ unsigned char flags)
+{
+ cmd->cmd_len = 10;
+ cmd->cmnd[0] = write ? WRITE_10 : READ_10;
+ cmd->cmnd[1] = flags;
+ cmd->cmnd[6] = 0;
+ cmd->cmnd[9] = 0;
+ put_unaligned_be32(lba, &cmd->cmnd[2]);
+ put_unaligned_be16(nr_blocks, &cmd->cmnd[7]);
+
+ return BLK_STS_OK;
+}
+
+static blk_status_t sd_setup_rw6_cmnd(struct scsi_cmnd *cmd, bool write,
+ sector_t lba, unsigned int nr_blocks,
+ unsigned char flags)
+{
+ /* Avoid that 0 blocks gets translated into 256 blocks. */
+ if (WARN_ON_ONCE(nr_blocks == 0))
+ return BLK_STS_IOERR;
+
+ if (unlikely(flags & 0x8)) {
/*
- * quietly refuse to do anything to a changed disc until
- * the changed bit has been reset
+ * This happens only if this drive failed 10byte rw
+ * command with ILLEGAL_REQUEST during operation and
+ * thus turned off use_10_for_rw.
*/
- /* printk("SCSI disk has been changed or is not present. Prohibiting further I/O.\n"); */
- goto out;
+ scmd_printk(KERN_ERR, cmd, "FUA write on READ/WRITE(6) drive\n");
+ return BLK_STS_IOERR;
+ }
+
+ cmd->cmd_len = 6;
+ cmd->cmnd[0] = write ? WRITE_6 : READ_6;
+ cmd->cmnd[1] = (lba >> 16) & 0x1f;
+ cmd->cmnd[2] = (lba >> 8) & 0xff;
+ cmd->cmnd[3] = lba & 0xff;
+ cmd->cmnd[4] = nr_blocks;
+ cmd->cmnd[5] = 0;
+
+ return BLK_STS_OK;
+}
+
+static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
+{
+ struct request *rq = cmd->request;
+ struct scsi_device *sdp = cmd->device;
+ struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
+ sector_t lba = sectors_to_logical(sdp, blk_rq_pos(rq));
+ sector_t threshold;
+ unsigned int nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
+ unsigned int mask = logical_to_sectors(sdp, 1) - 1;
+ bool write = rq_data_dir(rq) == WRITE;
+ unsigned char protect, fua;
+ blk_status_t ret;
+ unsigned int dif;
+ bool dix;
+
+ ret = scsi_alloc_sgtables(cmd);
+ if (ret != BLK_STS_OK)
+ return ret;
+
+ ret = BLK_STS_IOERR;
+ if (!scsi_device_online(sdp) || sdp->changed) {
+ scmd_printk(KERN_ERR, cmd, "device offline or changed\n");
+ goto fail;
+ }
+
+ if (blk_rq_pos(rq) + blk_rq_sectors(rq) > get_capacity(rq->rq_disk)) {
+ scmd_printk(KERN_ERR, cmd, "access beyond end of device\n");
+ goto fail;
+ }
+
+ if ((blk_rq_pos(rq) & mask) || (blk_rq_sectors(rq) & mask)) {
+ scmd_printk(KERN_ERR, cmd, "request not aligned to the logical block size\n");
+ goto fail;
}
/*
- * Some SD card readers can't handle multi-sector accesses which touch
- * the last one or two hardware sectors. Split accesses as needed.
+ * Some SD card readers can't handle accesses which touch the
+ * last one or two logical blocks. Split accesses as needed.
*/
- threshold = get_capacity(disk) - SD_LAST_BUGGY_SECTORS *
- (sdp->sector_size / 512);
+ threshold = sdkp->capacity - SD_LAST_BUGGY_SECTORS;
- if (unlikely(sdp->last_sector_bug && block + this_count > threshold)) {
- if (block < threshold) {
+ if (unlikely(sdp->last_sector_bug && lba + nr_blocks > threshold)) {
+ if (lba < threshold) {
/* Access up to the threshold but not beyond */
- this_count = threshold - block;
+ nr_blocks = threshold - lba;
} else {
- /* Access only a single hardware sector */
- this_count = sdp->sector_size / 512;
+ /* Access only a single logical block */
+ nr_blocks = 1;
}
}
- SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, "block=%llu\n",
- (unsigned long long)block));
-
- /*
- * If we have a 1K hardware sectorsize, prevent access to single
- * 512 byte sectors. In theory we could handle this - in fact
- * the scsi cdrom driver must be able to handle this because
- * we typically use 1K blocksizes, and cdroms typically have
- * 2K hardware sectorsizes. Of course, things are simpler
- * with the cdrom, since it is read-only. For performance
- * reasons, the filesystems should be able to handle this
- * and not force the scsi disk driver to use bounce buffers
- * for this.
- */
- if (sdp->sector_size == 1024) {
- if ((block & 1) || (blk_rq_sectors(rq) & 1)) {
- scmd_printk(KERN_ERR, SCpnt,
- "Bad block number requested\n");
- goto out;
- } else {
- block = block >> 1;
- this_count = this_count >> 1;
- }
- }
- if (sdp->sector_size == 2048) {
- if ((block & 3) || (blk_rq_sectors(rq) & 3)) {
- scmd_printk(KERN_ERR, SCpnt,
- "Bad block number requested\n");
- goto out;
- } else {
- block = block >> 2;
- this_count = this_count >> 2;
- }
- }
- if (sdp->sector_size == 4096) {
- if ((block & 7) || (blk_rq_sectors(rq) & 7)) {
- scmd_printk(KERN_ERR, SCpnt,
- "Bad block number requested\n");
- goto out;
- } else {
- block = block >> 3;
- this_count = this_count >> 3;
- }
- }
- if (rq_data_dir(rq) == WRITE) {
- SCpnt->cmnd[0] = WRITE_6;
-
- if (blk_integrity_rq(rq))
- t10_pi_prepare(SCpnt->request, sdkp->protection_type);
-
- } else if (rq_data_dir(rq) == READ) {
- SCpnt->cmnd[0] = READ_6;
- } else {
- scmd_printk(KERN_ERR, SCpnt, "Unknown command %d\n", req_op(rq));
- goto out;
+ if (req_op(rq) == REQ_OP_ZONE_APPEND) {
+ ret = sd_zbc_prepare_zone_append(cmd, &lba, nr_blocks);
+ if (ret)
+ goto fail;
}
- SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt,
- "%s %d/%u 512 byte blocks.\n",
- (rq_data_dir(rq) == WRITE) ?
- "writing" : "reading", this_count,
- blk_rq_sectors(rq)));
-
- dix = scsi_prot_sg_count(SCpnt);
- dif = scsi_host_dif_capable(SCpnt->device->host, sdkp->protection_type);
+ fua = rq->cmd_flags & REQ_FUA ? 0x8 : 0;
+ dix = scsi_prot_sg_count(cmd);
+ dif = scsi_host_dif_capable(cmd->device->host, sdkp->protection_type);
if (dif || dix)
- protect = sd_setup_protect_cmnd(SCpnt, dix, dif);
+ protect = sd_setup_protect_cmnd(cmd, dix, dif);
else
protect = 0;
if (protect && sdkp->protection_type == T10_PI_TYPE2_PROTECTION) {
- SCpnt->cmnd = mempool_alloc(sd_cdb_pool, GFP_ATOMIC);
-
- if (unlikely(SCpnt->cmnd == NULL)) {
- ret = BLKPREP_DEFER;
- goto out;
- }
-
- SCpnt->cmd_len = SD_EXT_CDB_SIZE;
- memset(SCpnt->cmnd, 0, SCpnt->cmd_len);
- SCpnt->cmnd[0] = VARIABLE_LENGTH_CMD;
- SCpnt->cmnd[7] = 0x18;
- SCpnt->cmnd[9] = (rq_data_dir(rq) == READ) ? READ_32 : WRITE_32;
- SCpnt->cmnd[10] = protect | ((rq->cmd_flags & REQ_FUA) ? 0x8 : 0);
-
- /* LBA */
- SCpnt->cmnd[12] = sizeof(block) > 4 ? (unsigned char) (block >> 56) & 0xff : 0;
- SCpnt->cmnd[13] = sizeof(block) > 4 ? (unsigned char) (block >> 48) & 0xff : 0;
- SCpnt->cmnd[14] = sizeof(block) > 4 ? (unsigned char) (block >> 40) & 0xff : 0;
- SCpnt->cmnd[15] = sizeof(block) > 4 ? (unsigned char) (block >> 32) & 0xff : 0;
- SCpnt->cmnd[16] = (unsigned char) (block >> 24) & 0xff;
- SCpnt->cmnd[17] = (unsigned char) (block >> 16) & 0xff;
- SCpnt->cmnd[18] = (unsigned char) (block >> 8) & 0xff;
- SCpnt->cmnd[19] = (unsigned char) block & 0xff;
-
- /* Expected Indirect LBA */
- SCpnt->cmnd[20] = (unsigned char) (block >> 24) & 0xff;
- SCpnt->cmnd[21] = (unsigned char) (block >> 16) & 0xff;
- SCpnt->cmnd[22] = (unsigned char) (block >> 8) & 0xff;
- SCpnt->cmnd[23] = (unsigned char) block & 0xff;
-
- /* Transfer length */
- SCpnt->cmnd[28] = (unsigned char) (this_count >> 24) & 0xff;
- SCpnt->cmnd[29] = (unsigned char) (this_count >> 16) & 0xff;
- SCpnt->cmnd[30] = (unsigned char) (this_count >> 8) & 0xff;
- SCpnt->cmnd[31] = (unsigned char) this_count & 0xff;
- } else if (sdp->use_16_for_rw || (this_count > 0xffff)) {
- SCpnt->cmnd[0] += READ_16 - READ_6;
- SCpnt->cmnd[1] = protect | ((rq->cmd_flags & REQ_FUA) ? 0x8 : 0);
- SCpnt->cmnd[2] = sizeof(block) > 4 ? (unsigned char) (block >> 56) & 0xff : 0;
- SCpnt->cmnd[3] = sizeof(block) > 4 ? (unsigned char) (block >> 48) & 0xff : 0;
- SCpnt->cmnd[4] = sizeof(block) > 4 ? (unsigned char) (block >> 40) & 0xff : 0;
- SCpnt->cmnd[5] = sizeof(block) > 4 ? (unsigned char) (block >> 32) & 0xff : 0;
- SCpnt->cmnd[6] = (unsigned char) (block >> 24) & 0xff;
- SCpnt->cmnd[7] = (unsigned char) (block >> 16) & 0xff;
- SCpnt->cmnd[8] = (unsigned char) (block >> 8) & 0xff;
- SCpnt->cmnd[9] = (unsigned char) block & 0xff;
- SCpnt->cmnd[10] = (unsigned char) (this_count >> 24) & 0xff;
- SCpnt->cmnd[11] = (unsigned char) (this_count >> 16) & 0xff;
- SCpnt->cmnd[12] = (unsigned char) (this_count >> 8) & 0xff;
- SCpnt->cmnd[13] = (unsigned char) this_count & 0xff;
- SCpnt->cmnd[14] = SCpnt->cmnd[15] = 0;
- } else if ((this_count > 0xff) || (block > 0x1fffff) ||
- scsi_device_protection(SCpnt->device) ||
- SCpnt->device->use_10_for_rw) {
- SCpnt->cmnd[0] += READ_10 - READ_6;
- SCpnt->cmnd[1] = protect | ((rq->cmd_flags & REQ_FUA) ? 0x8 : 0);
- SCpnt->cmnd[2] = (unsigned char) (block >> 24) & 0xff;
- SCpnt->cmnd[3] = (unsigned char) (block >> 16) & 0xff;
- SCpnt->cmnd[4] = (unsigned char) (block >> 8) & 0xff;
- SCpnt->cmnd[5] = (unsigned char) block & 0xff;
- SCpnt->cmnd[6] = SCpnt->cmnd[9] = 0;
- SCpnt->cmnd[7] = (unsigned char) (this_count >> 8) & 0xff;
- SCpnt->cmnd[8] = (unsigned char) this_count & 0xff;
+ ret = sd_setup_rw32_cmnd(cmd, write, lba, nr_blocks,
+ protect | fua);
+ } else if (sdp->use_16_for_rw || (nr_blocks > 0xffff)) {
+ ret = sd_setup_rw16_cmnd(cmd, write, lba, nr_blocks,
+ protect | fua);
+ } else if ((nr_blocks > 0xff) || (lba > 0x1fffff) ||
+ sdp->use_10_for_rw || protect) {
+ ret = sd_setup_rw10_cmnd(cmd, write, lba, nr_blocks,
+ protect | fua);
} else {
- if (unlikely(rq->cmd_flags & REQ_FUA)) {
- /*
- * This happens only if this drive failed
- * 10byte rw command with ILLEGAL_REQUEST
- * during operation and thus turned off
- * use_10_for_rw.
- */
- scmd_printk(KERN_ERR, SCpnt,
- "FUA write on READ/WRITE(6) drive\n");
- goto out;
- }
-
- SCpnt->cmnd[1] |= (unsigned char) ((block >> 16) & 0x1f);
- SCpnt->cmnd[2] = (unsigned char) ((block >> 8) & 0xff);
- SCpnt->cmnd[3] = (unsigned char) block & 0xff;
- SCpnt->cmnd[4] = (unsigned char) this_count;
- SCpnt->cmnd[5] = 0;
+ ret = sd_setup_rw6_cmnd(cmd, write, lba, nr_blocks,
+ protect | fua);
}
- SCpnt->sdb.length = this_count * sdp->sector_size;
+
+ if (unlikely(ret != BLK_STS_OK))
+ goto fail;
/*
* We shouldn't disconnect in the middle of a sector, so with a dumb
* host adapter, it's safe to assume that we can at least transfer
* this many bytes between each connect / disconnect.
*/
- SCpnt->transfersize = sdp->sector_size;
- SCpnt->underflow = this_count << 9;
- SCpnt->allowed = SD_MAX_RETRIES;
+ cmd->transfersize = sdp->sector_size;
+ cmd->underflow = nr_blocks << 9;
+ cmd->allowed = sdkp->max_retries;
+ cmd->sdb.length = nr_blocks * sdp->sector_size;
+
+ SCSI_LOG_HLQUEUE(1,
+ scmd_printk(KERN_INFO, cmd,
+ "%s: block=%llu, count=%d\n", __func__,
+ (unsigned long long)blk_rq_pos(rq),
+ blk_rq_sectors(rq)));
+ SCSI_LOG_HLQUEUE(2,
+ scmd_printk(KERN_INFO, cmd,
+ "%s %d/%u 512 byte blocks.\n",
+ write ? "writing" : "reading", nr_blocks,
+ blk_rq_sectors(rq)));
/*
- * This indicates that the command is ready from our end to be
- * queued.
+ * This indicates that the command is ready from our end to be queued.
*/
- ret = BLKPREP_OK;
- out:
+ return BLK_STS_OK;
+fail:
+ scsi_free_sgtables(cmd);
return ret;
}
-static int sd_init_command(struct scsi_cmnd *cmd)
+static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
{
struct request *rq = cmd->request;
@@ -1273,7 +1344,7 @@
case SD_LBP_ZERO:
return sd_setup_write_same10_cmnd(cmd, false);
default:
- return BLKPREP_INVALID;
+ return BLK_STS_TARGET;
}
case REQ_OP_WRITE_ZEROES:
return sd_setup_write_zeroes_cmnd(cmd);
@@ -1283,14 +1354,23 @@
return sd_setup_flush_cmnd(cmd);
case REQ_OP_READ:
case REQ_OP_WRITE:
+ case REQ_OP_ZONE_APPEND:
return sd_setup_read_write_cmnd(cmd);
- case REQ_OP_ZONE_REPORT:
- return sd_zbc_setup_report_cmnd(cmd);
case REQ_OP_ZONE_RESET:
- return sd_zbc_setup_reset_cmnd(cmd);
+ return sd_zbc_setup_zone_mgmt_cmnd(cmd, ZO_RESET_WRITE_POINTER,
+ false);
+ case REQ_OP_ZONE_RESET_ALL:
+ return sd_zbc_setup_zone_mgmt_cmnd(cmd, ZO_RESET_WRITE_POINTER,
+ true);
+ case REQ_OP_ZONE_OPEN:
+ return sd_zbc_setup_zone_mgmt_cmnd(cmd, ZO_OPEN_ZONE, false);
+ case REQ_OP_ZONE_CLOSE:
+ return sd_zbc_setup_zone_mgmt_cmnd(cmd, ZO_CLOSE_ZONE, false);
+ case REQ_OP_ZONE_FINISH:
+ return sd_zbc_setup_zone_mgmt_cmnd(cmd, ZO_FINISH_ZONE, false);
default:
WARN_ON_ONCE(1);
- return BLKPREP_KILL;
+ return BLK_STS_NOTSUPP;
}
}
@@ -1308,6 +1388,22 @@
SCpnt->cmd_len = 0;
mempool_free(cmnd, sd_cdb_pool);
}
+}
+
+static bool sd_need_revalidate(struct block_device *bdev,
+ struct scsi_disk *sdkp)
+{
+ if (sdkp->device->removable || sdkp->write_prot) {
+ if (bdev_check_media_change(bdev))
+ return true;
+ }
+
+ /*
+ * Force a full rescan after ioctl(BLKRRPART). While the disk state has
+ * nothing to do with partitions, BLKRRPART is used to force a full
+ * revalidate after things like a format for historical reasons.
+ */
+ return test_bit(GD_NEED_PART_SCAN, &bdev->bd_disk->state);
}
/**
@@ -1346,8 +1442,8 @@
if (!scsi_block_when_processing_errors(sdev))
goto error_out;
- if (sdev->removable || sdkp->write_prot)
- check_disk_change(bdev);
+ if (sd_need_revalidate(bdev, sdkp))
+ sd_revalidate_disk(bdev->bd_disk);
/*
* If the drive is empty, just let the open fail.
@@ -1444,7 +1540,7 @@
* @bdev: target block device
* @mode: FMODE_* mask
* @cmd: ioctl command number
- * @arg: this is third argument given to ioctl(2) system call.
+ * @p: this is third argument given to ioctl(2) system call.
* Often contains a pointer.
*
* Returns 0 if successful (some ioctls return positive numbers on
@@ -1453,13 +1549,12 @@
* Note: most ioctls are forward onto the block subsystem or further
* down in the scsi subsystem.
**/
-static int sd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+static int sd_ioctl_common(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, void __user *p)
{
struct gendisk *disk = bdev->bd_disk;
struct scsi_disk *sdkp = scsi_disk(disk);
struct scsi_device *sdp = sdkp->device;
- void __user *p = (void __user *)arg;
int error;
SCSI_LOG_IOCTL(1, sd_printk(KERN_INFO, sdkp, "sd_ioctl: disk=%s, "
@@ -1495,9 +1590,6 @@
break;
default:
error = scsi_cmd_blk_ioctl(bdev, mode, cmd, p);
- if (error != -ENOTTY)
- break;
- error = scsi_ioctl(sdp, cmd, p);
break;
}
out:
@@ -1578,7 +1670,7 @@
if (scsi_block_when_processing_errors(sdp)) {
struct scsi_sense_hdr sshdr = { 0, };
- retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES,
+ retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, sdkp->max_retries,
&sshdr);
/* failed to execute TUR, assume media not present */
@@ -1635,7 +1727,7 @@
* flush everything.
*/
res = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, sshdr,
- timeout, SD_MAX_RETRIES, 0, RQF_PM, NULL);
+ timeout, sdkp->max_retries, 0, RQF_PM, NULL);
if (res == 0)
break;
}
@@ -1675,43 +1767,37 @@
static void sd_rescan(struct device *dev)
{
struct scsi_disk *sdkp = dev_get_drvdata(dev);
+ int ret;
- revalidate_disk(sdkp->disk);
+ ret = sd_revalidate_disk(sdkp->disk);
+ revalidate_disk_size(sdkp->disk, ret == 0);
}
+static int sd_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ void __user *p = (void __user *)arg;
+ int ret;
+
+ ret = sd_ioctl_common(bdev, mode, cmd, p);
+ if (ret != -ENOTTY)
+ return ret;
+
+ return scsi_ioctl(scsi_disk(bdev->bd_disk)->device, cmd, p);
+}
#ifdef CONFIG_COMPAT
-/*
- * This gets directly called from VFS. When the ioctl
- * is not recognized we go back to the other translation paths.
- */
static int sd_compat_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
- struct gendisk *disk = bdev->bd_disk;
- struct scsi_disk *sdkp = scsi_disk(disk);
- struct scsi_device *sdev = sdkp->device;
void __user *p = compat_ptr(arg);
- int error;
+ int ret;
- error = scsi_verify_blk_ioctl(bdev, cmd);
- if (error < 0)
- return error;
+ ret = sd_ioctl_common(bdev, mode, cmd, p);
+ if (ret != -ENOTTY)
+ return ret;
- error = scsi_ioctl_block_when_processing_errors(sdev, cmd,
- (mode & FMODE_NDELAY) != 0);
- if (error)
- return error;
-
- if (is_sed_ioctl(cmd))
- return sed_ioctl(sdkp->opal_dev, cmd, p);
-
- /*
- * Let the static ioctl translation table take care of it.
- */
- if (!sdev->host->hostt->compat_ioctl)
- return -ENOIOCTLCMD;
- return sdev->host->hostt->compat_ioctl(sdev, cmd, p);
+ return scsi_compat_ioctl(scsi_disk(bdev->bd_disk)->device, cmd, p);
}
#endif
@@ -1738,7 +1824,8 @@
static int sd_pr_command(struct block_device *bdev, u8 sa,
u64 key, u64 sa_key, u8 type, u8 flags)
{
- struct scsi_device *sdev = scsi_disk(bdev->bd_disk)->device;
+ struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk);
+ struct scsi_device *sdev = sdkp->device;
struct scsi_sense_hdr sshdr;
int result;
u8 cmd[16] = { 0, };
@@ -1754,7 +1841,7 @@
data[20] = flags;
result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, &data, sizeof(data),
- &sshdr, SD_TIMEOUT, SD_MAX_RETRIES, NULL);
+ &sshdr, SD_TIMEOUT, sdkp->max_retries, NULL);
if (driver_byte(result) == DRIVER_SENSE &&
scsi_sense_valid(&sshdr)) {
@@ -1818,8 +1905,8 @@
.compat_ioctl = sd_compat_ioctl,
#endif
.check_events = sd_check_events,
- .revalidate_disk = sd_revalidate_disk,
.unlock_native_capacity = sd_unlock_native_capacity,
+ .report_zones = sd_zbc_report_zones,
.pr_ops = &sd_pr_ops,
};
@@ -1963,22 +2050,12 @@
case REQ_OP_WRITE_ZEROES:
case REQ_OP_WRITE_SAME:
case REQ_OP_ZONE_RESET:
+ case REQ_OP_ZONE_RESET_ALL:
+ case REQ_OP_ZONE_OPEN:
+ case REQ_OP_ZONE_CLOSE:
+ case REQ_OP_ZONE_FINISH:
if (!result) {
good_bytes = blk_rq_bytes(req);
- scsi_set_resid(SCpnt, 0);
- } else {
- good_bytes = 0;
- scsi_set_resid(SCpnt, blk_rq_bytes(req));
- }
- break;
- case REQ_OP_ZONE_REPORT:
- /* To avoid that the block layer performs an incorrect
- * bio_advance() call and restart of the remainder of
- * incomplete report zone BIOs, always indicate a full
- * completion of REQ_OP_ZONE_REPORT.
- */
- if (!result) {
- good_bytes = scsi_bufflen(SCpnt);
scsi_set_resid(SCpnt, 0);
} else {
good_bytes = 0;
@@ -1996,6 +2073,7 @@
sd_printk(KERN_INFO, sdkp,
"Unaligned partial completion (resid=%u, sector_sz=%u)\n",
resid, sector_size);
+ scsi_print_command(SCpnt);
resid = min(scsi_bufflen(SCpnt),
round_up(resid, sector_size));
scsi_set_resid(SCpnt, resid);
@@ -2063,16 +2141,11 @@
out:
if (sd_is_zoned(sdkp))
- sd_zbc_complete(SCpnt, good_bytes, &sshdr);
+ good_bytes = sd_zbc_complete(SCpnt, good_bytes, &sshdr);
SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt,
"sd_done: completed %d of %d bytes\n",
good_bytes, scsi_bufflen(SCpnt)));
-
- if (rq_data_dir(SCpnt->request) == READ && scsi_prot_sg_count(SCpnt) &&
- good_bytes)
- t10_pi_complete(SCpnt->request, sdkp->protection_type,
- good_bytes / scsi_prot_interval(SCpnt));
return good_bytes;
}
@@ -2104,7 +2177,7 @@
the_result = scsi_execute_req(sdkp->device, cmd,
DMA_NONE, NULL, 0,
&sshdr, SD_TIMEOUT,
- SD_MAX_RETRIES, NULL);
+ sdkp->max_retries, NULL);
/*
* If the drive has indicated to us that it
@@ -2160,7 +2233,7 @@
cmd[4] |= 1 << 4;
scsi_execute_req(sdkp->device, cmd, DMA_NONE,
NULL, 0, &sshdr,
- SD_TIMEOUT, SD_MAX_RETRIES,
+ SD_TIMEOUT, sdkp->max_retries,
NULL);
spintime_expire = jiffies + 100 * HZ;
spintime = 1;
@@ -2278,22 +2351,6 @@
#define READ_CAPACITY_RETRIES_ON_RESET 10
-/*
- * Ensure that we don't overflow sector_t when CONFIG_LBDAF is not set
- * and the reported logical block size is bigger than 512 bytes. Note
- * that last_sector is a u64 and therefore logical_to_sectors() is not
- * applicable.
- */
-static bool sd_addressable_capacity(u64 lba, unsigned int sector_size)
-{
- u64 last_sector = (lba + 1ULL) << (ilog2(sector_size) - 9);
-
- if (sizeof(sector_t) == 4 && last_sector > U32_MAX)
- return false;
-
- return true;
-}
-
static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
unsigned char *buffer)
{
@@ -2318,7 +2375,7 @@
the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
buffer, RC16_LEN, &sshdr,
- SD_TIMEOUT, SD_MAX_RETRIES, NULL);
+ SD_TIMEOUT, sdkp->max_retries, NULL);
if (media_not_present(sdkp, &sshdr))
return -ENODEV;
@@ -2357,14 +2414,6 @@
if (sd_read_protection_type(sdkp, buffer) < 0) {
sdkp->capacity = 0;
return -ENODEV;
- }
-
- if (!sd_addressable_capacity(lba, sector_size)) {
- sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
- "kernel compiled with support for large block "
- "devices.\n");
- sdkp->capacity = 0;
- return -EOVERFLOW;
}
/* Logical blocks per physical block exponent */
@@ -2411,7 +2460,7 @@
the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
buffer, 8, &sshdr,
- SD_TIMEOUT, SD_MAX_RETRIES, NULL);
+ SD_TIMEOUT, sdkp->max_retries, NULL);
if (media_not_present(sdkp, &sshdr))
return -ENODEV;
@@ -2446,14 +2495,6 @@
sdkp->capacity = 0;
sdkp->physical_block_size = sector_size;
return sector_size;
- }
-
- if (!sd_addressable_capacity(lba, sector_size)) {
- sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
- "kernel compiled with support for large block "
- "devices.\n");
- sdkp->capacity = 0;
- return -EOVERFLOW;
}
sdkp->capacity = lba + 1;
@@ -2583,35 +2624,33 @@
int sector_size = sdkp->device->sector_size;
char cap_str_2[10], cap_str_10[10];
+ if (!sdkp->first_scan && old_capacity == sdkp->capacity)
+ return;
+
string_get_size(sdkp->capacity, sector_size,
STRING_UNITS_2, cap_str_2, sizeof(cap_str_2));
string_get_size(sdkp->capacity, sector_size,
- STRING_UNITS_10, cap_str_10,
- sizeof(cap_str_10));
+ STRING_UNITS_10, cap_str_10, sizeof(cap_str_10));
- if (sdkp->first_scan || old_capacity != sdkp->capacity) {
+ sd_printk(KERN_NOTICE, sdkp,
+ "%llu %d-byte logical blocks: (%s/%s)\n",
+ (unsigned long long)sdkp->capacity,
+ sector_size, cap_str_10, cap_str_2);
+
+ if (sdkp->physical_block_size != sector_size)
sd_printk(KERN_NOTICE, sdkp,
- "%llu %d-byte logical blocks: (%s/%s)\n",
- (unsigned long long)sdkp->capacity,
- sector_size, cap_str_10, cap_str_2);
-
- if (sdkp->physical_block_size != sector_size)
- sd_printk(KERN_NOTICE, sdkp,
- "%u-byte physical blocks\n",
- sdkp->physical_block_size);
-
- sd_zbc_print_zones(sdkp);
- }
+ "%u-byte physical blocks\n",
+ sdkp->physical_block_size);
}
/* called with buffer of length 512 */
static inline int
-sd_do_mode_sense(struct scsi_device *sdp, int dbd, int modepage,
+sd_do_mode_sense(struct scsi_disk *sdkp, int dbd, int modepage,
unsigned char *buffer, int len, struct scsi_mode_data *data,
struct scsi_sense_hdr *sshdr)
{
- return scsi_mode_sense(sdp, dbd, modepage, buffer, len,
- SD_TIMEOUT, SD_MAX_RETRIES, data,
+ return scsi_mode_sense(sdkp->device, dbd, modepage, buffer, len,
+ SD_TIMEOUT, sdkp->max_retries, data,
sshdr);
}
@@ -2634,14 +2673,14 @@
}
if (sdp->use_192_bytes_for_3f) {
- res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 192, &data, NULL);
+ res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 192, &data, NULL);
} else {
/*
* First attempt: ask for all pages (0x3F), but only 4 bytes.
* We have to start carefully: some devices hang if we ask
* for more than is available.
*/
- res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 4, &data, NULL);
+ res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 4, &data, NULL);
/*
* Second attempt: ask for page 0 When only page 0 is
@@ -2649,18 +2688,18 @@
* 5: Illegal Request, Sense Code 24: Invalid field in
* CDB.
*/
- if (!scsi_status_is_good(res))
- res = sd_do_mode_sense(sdp, 0, 0, buffer, 4, &data, NULL);
+ if (res < 0)
+ res = sd_do_mode_sense(sdkp, 0, 0, buffer, 4, &data, NULL);
/*
* Third attempt: ask 255 bytes, as we did earlier.
*/
- if (!scsi_status_is_good(res))
- res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 255,
+ if (res < 0)
+ res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 255,
&data, NULL);
}
- if (!scsi_status_is_good(res)) {
+ if (res < 0) {
sd_first_printk(KERN_WARNING, sdkp,
"Test WP failed, assume Write Enabled\n");
} else {
@@ -2683,7 +2722,6 @@
{
int len = 0, res;
struct scsi_device *sdp = sdkp->device;
- struct Scsi_Host *host = sdp->host;
int dbd;
int modepage;
@@ -2715,17 +2753,14 @@
dbd = 8;
} else {
modepage = 8;
- if (host->set_dbd_for_caching)
- dbd = 8;
- else
- dbd = 0;
+ dbd = 0;
}
/* cautiously ask */
- res = sd_do_mode_sense(sdp, dbd, modepage, buffer, first_len,
+ res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, first_len,
&data, &sshdr);
- if (!scsi_status_is_good(res))
+ if (res < 0)
goto bad_sense;
if (!data.header_length) {
@@ -2754,10 +2789,10 @@
/* Get the data */
if (len > first_len)
- res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len,
+ res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, len,
&data, &sshdr);
- if (scsi_status_is_good(res)) {
+ if (!res) {
int offset = data.header_length + data.block_descriptor_length;
while (offset < len) {
@@ -2873,9 +2908,9 @@
return;
res = scsi_mode_sense(sdp, 1, 0x0a, buffer, 36, SD_TIMEOUT,
- SD_MAX_RETRIES, &data, &sshdr);
+ sdkp->max_retries, &data, &sshdr);
- if (!scsi_status_is_good(res) || !data.header_length ||
+ if (res < 0 || !data.header_length ||
data.length < 6) {
sd_first_printk(KERN_WARNING, sdkp,
"getting Control mode page failed, assume no ATO\n");
@@ -2992,22 +3027,32 @@
if (sdkp->device->type == TYPE_ZBC) {
/* Host-managed */
- q->limits.zoned = BLK_ZONED_HM;
+ blk_queue_set_zoned(sdkp->disk, BLK_ZONED_HM);
} else {
sdkp->zoned = (buffer[8] >> 4) & 3;
- if (sdkp->zoned == 1)
+ if (sdkp->zoned == 1) {
/* Host-aware */
- q->limits.zoned = BLK_ZONED_HA;
- else
- /*
- * Treat drive-managed devices as
- * regular block devices.
- */
- q->limits.zoned = BLK_ZONED_NONE;
+ blk_queue_set_zoned(sdkp->disk, BLK_ZONED_HA);
+ } else {
+ /* Regular disk or drive managed disk */
+ blk_queue_set_zoned(sdkp->disk, BLK_ZONED_NONE);
+ }
}
- if (blk_queue_is_zoned(q) && sdkp->first_scan)
+
+ if (!sdkp->first_scan)
+ goto out;
+
+ if (blk_queue_is_zoned(q)) {
sd_printk(KERN_NOTICE, sdkp, "Host-%s zoned block device\n",
q->limits.zoned == BLK_ZONED_HM ? "managed" : "aware");
+ } else {
+ if (sdkp->zoned == 1)
+ sd_printk(KERN_NOTICE, sdkp,
+ "Host-aware SMR disk used as regular disk\n");
+ else if (sdkp->zoned == 2)
+ sd_printk(KERN_NOTICE, sdkp,
+ "Drive-managed SMR disk\n");
+ }
out:
kfree(buffer);
@@ -3237,9 +3282,18 @@
sdkp->first_scan = 0;
- set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
+ set_capacity_revalidate_and_notify(disk,
+ logical_to_sectors(sdp, sdkp->capacity), false);
sd_config_write_same(sdkp);
kfree(buffer);
+
+ /*
+ * For a zoned drive, revalidating the zones can be done only once
+ * the gendisk capacity is set. So if this fails, set back the gendisk
+ * capacity to 0.
+ */
+ if (sd_zbc_revalidate_zones(sdkp))
+ set_capacity_revalidate_and_notify(disk, 0, false);
out:
return 0;
@@ -3311,72 +3365,6 @@
return 0;
}
-/*
- * The asynchronous part of sd_probe
- */
-static void sd_probe_async(void *data, async_cookie_t cookie)
-{
- struct scsi_disk *sdkp = data;
- struct scsi_device *sdp;
- struct gendisk *gd;
- u32 index;
- struct device *dev;
-
- sdp = sdkp->device;
- gd = sdkp->disk;
- index = sdkp->index;
- dev = &sdp->sdev_gendev;
-
- gd->major = sd_major((index & 0xf0) >> 4);
- gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
-
- gd->fops = &sd_fops;
- gd->private_data = &sdkp->driver;
- gd->queue = sdkp->device->request_queue;
-
- /* defaults, until the device tells us otherwise */
- sdp->sector_size = 512;
- sdkp->capacity = 0;
- sdkp->media_present = 1;
- sdkp->write_prot = 0;
- sdkp->cache_override = 0;
- sdkp->WCE = 0;
- sdkp->RCD = 0;
- sdkp->ATO = 0;
- sdkp->first_scan = 1;
- sdkp->max_medium_access_timeouts = SD_MAX_MEDIUM_TIMEOUTS;
-
- sd_revalidate_disk(gd);
-
- gd->flags = GENHD_FL_EXT_DEVT;
- if (sdp->removable) {
- gd->flags |= GENHD_FL_REMOVABLE;
- gd->events |= DISK_EVENT_MEDIA_CHANGE;
- }
-
- blk_pm_runtime_init(sdp->request_queue, dev);
- if (sdp->rpm_autosuspend) {
- pm_runtime_set_autosuspend_delay(dev,
- sdp->host->hostt->rpm_autosuspend_delay);
- }
- device_add_disk(dev, gd);
- if (sdkp->capacity)
- sd_dif_config_host(sdkp);
-
- sd_revalidate_disk(gd);
-
- if (sdkp->security) {
- sdkp->opal_dev = init_opal_dev(sdp, &sd_sec_submit);
- if (sdkp->opal_dev)
- sd_printk(KERN_NOTICE, sdkp, "supports TCG Opal\n");
- }
-
- sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
- sdp->removable ? "removable " : "");
- scsi_autopm_put_device(sdp);
- put_device(&sdkp->dev);
-}
-
/**
* sd_probe - called during driver initialization and whenever a
* new scsi device is attached to the system. It is called once
@@ -3443,6 +3431,7 @@
sdkp->driver = &sd_template;
sdkp->disk = gd;
sdkp->index = index;
+ sdkp->max_retries = SD_MAX_RETRIES;
atomic_set(&sdkp->openers, 0);
atomic_set(&sdkp->device->ioerr_cnt, 0);
@@ -3466,9 +3455,56 @@
}
dev_set_drvdata(dev, sdkp);
+ device_init_wakeup(dev, true);
- get_device(&sdkp->dev); /* prevent release before async_schedule */
- async_schedule_domain(sd_probe_async, sdkp, &scsi_sd_probe_domain);
+ gd->major = sd_major((index & 0xf0) >> 4);
+ gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
+
+ gd->fops = &sd_fops;
+ gd->private_data = &sdkp->driver;
+ gd->queue = sdkp->device->request_queue;
+
+ /* defaults, until the device tells us otherwise */
+ sdp->sector_size = 512;
+ sdkp->capacity = 0;
+ sdkp->media_present = 1;
+ sdkp->write_prot = 0;
+ sdkp->cache_override = 0;
+ sdkp->WCE = 0;
+ sdkp->RCD = 0;
+ sdkp->ATO = 0;
+ sdkp->first_scan = 1;
+ sdkp->max_medium_access_timeouts = SD_MAX_MEDIUM_TIMEOUTS;
+
+ sd_revalidate_disk(gd);
+
+ gd->flags = GENHD_FL_EXT_DEVT;
+ if (sdp->removable) {
+ gd->flags |= GENHD_FL_REMOVABLE;
+ gd->events |= DISK_EVENT_MEDIA_CHANGE;
+ gd->event_flags = DISK_EVENT_FLAG_POLL | DISK_EVENT_FLAG_UEVENT;
+ }
+
+ blk_pm_runtime_init(sdp->request_queue, dev);
+ if (sdp->rpm_autosuspend) {
+ pm_runtime_set_autosuspend_delay(dev,
+ sdp->host->hostt->rpm_autosuspend_delay);
+ }
+ device_add_disk(dev, gd, NULL);
+ if (sdkp->capacity)
+ sd_dif_config_host(sdkp);
+
+ sd_revalidate_disk(gd);
+
+ if (sdkp->security) {
+ sdkp->opal_dev = init_opal_dev(sdkp, &sd_sec_submit);
+ if (sdkp->opal_dev)
+ sd_printk(KERN_NOTICE, sdkp, "supports TCG Opal\n");
+ }
+
+ sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
+ sdp->removable ? "removable " : "");
+ scsi_autopm_put_device(sdp);
return 0;
@@ -3504,12 +3540,9 @@
scsi_autopm_get_device(sdkp->device);
async_synchronize_full_domain(&scsi_sd_pm_domain);
- async_synchronize_full_domain(&scsi_sd_probe_domain);
device_del(&sdkp->dev);
del_gendisk(sdkp->disk);
sd_shutdown(dev);
-
- sd_zbc_remove(sdkp);
free_opal_dev(sdkp->opal_dev);
@@ -3556,6 +3589,8 @@
put_disk(disk);
put_device(&sdkp->device->sdev_gendev);
+ sd_zbc_release_disk(sdkp);
+
kfree(sdkp);
}
@@ -3576,7 +3611,7 @@
return -ENODEV;
res = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
- SD_TIMEOUT, SD_MAX_RETRIES, 0, RQF_PM, NULL);
+ SD_TIMEOUT, sdkp->max_retries, 0, RQF_PM, NULL);
if (res) {
sd_print_result(sdkp, "Start/Stop Unit failed", res);
if (driver_byte(res) == DRIVER_SENSE)
@@ -3683,10 +3718,16 @@
if (!sdkp->device->manage_start_stop)
return 0;
+ /* The wake-up process cannot allow the PM to enter sleep */
+ pm_stay_awake(dev);
+
sd_printk(KERN_NOTICE, sdkp, "Starting disk\n");
ret = sd_start_stop_device(sdkp, 1);
if (!ret)
opal_unlock_from_suspend(sdkp->opal_dev);
+
+ pm_relax(dev);
+
return ret;
}
@@ -3789,15 +3830,13 @@
module_init(init_sd);
module_exit(exit_sd);
-static void sd_print_sense_hdr(struct scsi_disk *sdkp,
- struct scsi_sense_hdr *sshdr)
+void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr)
{
scsi_print_sense_hdr(sdkp->device,
sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr);
}
-static void sd_print_result(const struct scsi_disk *sdkp, const char *msg,
- int result)
+void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result)
{
const char *hb_string = scsi_hostbyte_string(result);
const char *db_string = scsi_driverbyte_string(result);
@@ -3812,4 +3851,3 @@
"%s: Result: hostbyte=0x%02x driverbyte=0x%02x\n",
msg, host_byte(result), driver_byte(result));
}
-
--
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